Improved finalization (again)

build.gradle

@@ -69,6 +69,7 @@ allprojects {
         exclude group: "org.kitteh", module: "paste-gg-api"
         exclude group: "org.spongepowered", module: "configurate-hocon"
         exclude group: "com.darkblade12", module: "particleeffect"
+        exclude group: "com.github.cryptomorin", module: "XSeries"
     }
 
     shadowJar {

eco-core/core-nms/v1_15_R1/src/main/java/com/willfp/eco/proxy/v1_15_R1/VillagerTrade.java

@@ -9,16 +9,11 @@ import org.bukkit.inventory.MerchantRecipe;
 import org.jetbrains.annotations.NotNull;
 
 import java.lang.reflect.Field;
-import java.lang.reflect.Modifier;
 
 public final class VillagerTrade implements VillagerTradeProxy {
     @Override
     public void displayTrade(@NotNull final MerchantRecipe merchantRecipe) {
         try {
-            // Enables removing final modifier
-            Field modifiersField = Field.class.getDeclaredField("modifiers");
-            modifiersField.setAccessible(true);
-
             // Bukkit MerchantRecipe result
             Field fResult = MerchantRecipe.class.getDeclaredField("result");
             fResult.setAccessible(true);
@@ -31,11 +26,9 @@ public final class VillagerTrade implements VillagerTradeProxy {
             Field fHandle = CraftMerchantRecipe.class.getDeclaredField("handle");
             fHandle.setAccessible(true);
             net.minecraft.server.v1_15_R1.MerchantRecipe handle = (net.minecraft.server.v1_15_R1.MerchantRecipe) fHandle.get(merchantRecipe); // NMS Recipe
-            modifiersField.setInt(fHandle, fHandle.getModifiers() & ~Modifier.FINAL); // Remove final
 
             Field fSelling = net.minecraft.server.v1_15_R1.MerchantRecipe.class.getDeclaredField("sellingItem");
             fSelling.setAccessible(true);
-            modifiersField.setInt(fSelling, fSelling.getModifiers() & ~Modifier.FINAL);
 
             ItemStack selling = CraftItemStack.asBukkitCopy(handle.sellingItem);
             Display.displayAndFinalize(selling);

eco-core/core-nms/v1_16_R1/src/main/java/com/willfp/eco/proxy/v1_16_R1/VillagerTrade.java

@@ -9,16 +9,11 @@ import org.bukkit.inventory.MerchantRecipe;
 import org.jetbrains.annotations.NotNull;
 
 import java.lang.reflect.Field;
-import java.lang.reflect.Modifier;
 
 public final class VillagerTrade implements VillagerTradeProxy {
     @Override
     public void displayTrade(@NotNull final MerchantRecipe merchantRecipe) {
         try {
-            // Enables removing final modifier
-            Field modifiersField = Field.class.getDeclaredField("modifiers");
-            modifiersField.setAccessible(true);
-
             // Bukkit MerchantRecipe result
             Field fResult = MerchantRecipe.class.getDeclaredField("result");
             fResult.setAccessible(true);
@@ -30,11 +25,9 @@ public final class VillagerTrade implements VillagerTradeProxy {
             Field fHandle = CraftMerchantRecipe.class.getDeclaredField("handle");
             fHandle.setAccessible(true);
             net.minecraft.server.v1_16_R1.MerchantRecipe handle = (net.minecraft.server.v1_16_R1.MerchantRecipe) fHandle.get(merchantRecipe); // NMS Recipe
-            modifiersField.setInt(fHandle, fHandle.getModifiers() & ~Modifier.FINAL); // Remove final
 
             Field fSelling = net.minecraft.server.v1_16_R1.MerchantRecipe.class.getDeclaredField("sellingItem");
             fSelling.setAccessible(true);
-            modifiersField.setInt(fSelling, fSelling.getModifiers() & ~Modifier.FINAL);
 
             ItemStack selling = CraftItemStack.asBukkitCopy(handle.sellingItem);
             Display.displayAndFinalize(selling);

eco-core/core-nms/v1_16_R2/src/main/java/com/willfp/eco/proxy/v1_16_R2/VillagerTrade.java

@@ -9,16 +9,11 @@ import org.bukkit.inventory.MerchantRecipe;
 import org.jetbrains.annotations.NotNull;
 
 import java.lang.reflect.Field;
-import java.lang.reflect.Modifier;
 
 public final class VillagerTrade implements VillagerTradeProxy {
     @Override
     public void displayTrade(@NotNull final MerchantRecipe merchantRecipe) {
         try {
-            // Enables removing final modifier
-            Field modifiersField = Field.class.getDeclaredField("modifiers");
-            modifiersField.setAccessible(true);
-
             // Bukkit MerchantRecipe result
             Field fResult = MerchantRecipe.class.getDeclaredField("result");
             fResult.setAccessible(true);
@@ -30,11 +25,9 @@ public final class VillagerTrade implements VillagerTradeProxy {
             Field fHandle = CraftMerchantRecipe.class.getDeclaredField("handle");
             fHandle.setAccessible(true);
             net.minecraft.server.v1_16_R2.MerchantRecipe handle = (net.minecraft.server.v1_16_R2.MerchantRecipe) fHandle.get(merchantRecipe); // NMS Recipe
-            modifiersField.setInt(fHandle, fHandle.getModifiers() & ~Modifier.FINAL); // Remove final
 
             Field fSelling = net.minecraft.server.v1_16_R2.MerchantRecipe.class.getDeclaredField("sellingItem");
             fSelling.setAccessible(true);
-            modifiersField.setInt(fSelling, fSelling.getModifiers() & ~Modifier.FINAL);
 
             ItemStack selling = CraftItemStack.asBukkitCopy(handle.sellingItem);
             Display.displayAndFinalize(selling);

eco-core/core-nms/v1_16_R3/src/main/java/com/willfp/eco/proxy/v1_16_R3/VillagerTrade.java

@@ -9,16 +9,11 @@ import org.bukkit.inventory.MerchantRecipe;
 import org.jetbrains.annotations.NotNull;
 
 import java.lang.reflect.Field;
-import java.lang.reflect.Modifier;
 
 public final class VillagerTrade implements VillagerTradeProxy {
     @Override
     public void displayTrade(@NotNull final MerchantRecipe merchantRecipe) {
         try {
-            // Enables removing final modifier
-            Field modifiersField = Field.class.getDeclaredField("modifiers");
-            modifiersField.setAccessible(true);
-
             // Bukkit MerchantRecipe result
             Field fResult = MerchantRecipe.class.getDeclaredField("result");
             fResult.setAccessible(true);
@@ -29,12 +24,10 @@ public final class VillagerTrade implements VillagerTradeProxy {
             // Get NMS MerchantRecipe from CraftMerchantRecipe
             Field fHandle = CraftMerchantRecipe.class.getDeclaredField("handle");
             fHandle.setAccessible(true);
-            net.minecraft.server.v1_16_R3.MerchantRecipe handle = (net.minecraft.server.v1_16_R3.MerchantRecipe) fHandle.get(merchantRecipe); // NMS Recipe
-            modifiersField.setInt(fHandle, fHandle.getModifiers() & ~Modifier.FINAL); // Remove final
+            net.minecraft.server.v1_16_R3.MerchantRecipe handle = (net.minecraft.server.v1_16_R3.MerchantRecipe) fHandle.get(merchantRecipe); // NMS RecipeR
 
             Field fSelling = net.minecraft.server.v1_16_R3.MerchantRecipe.class.getDeclaredField("sellingItem");
             fSelling.setAccessible(true);
-            modifiersField.setInt(fSelling, fSelling.getModifiers() & ~Modifier.FINAL);
 
             ItemStack selling = CraftItemStack.asBukkitCopy(handle.sellingItem);
             Display.displayAndFinalize(selling);

eco-core/core-plugin/build.gradle

@@ -9,7 +9,7 @@ dependencies {
     compileOnly 'com.sk89q.worldguard:worldguard-bukkit:7.0.4-SNAPSHOT'
     compileOnly 'com.github.TechFortress:GriefPrevention:16.14.0'
     compileOnly 'com.massivecraft:Factions:1.6.9.5-U0.5.10'
-    compileOnly 'com.github.cryptomorin:kingdoms:1.10.3.1'
+    compileOnly 'com.github.cryptomorin:kingdoms:1.10.14'
     compileOnly 'com.github.TownyAdvanced:Towny:0.96.2.0'
     compileOnly 'com.github.angeschossen:LandsAPI:4.7.3'
     compileOnly 'fr.neatmonster:nocheatplus:3.16.1-SNAPSHOT'

eco-core/core-plugin/src/main/java/com/willfp/eco/spigot/EcoPlugin.java

@@ -6,17 +6,18 @@ import com.willfp.eco.spigot.display.packets.PacketOpenWindowMerchant;
 import com.willfp.eco.spigot.display.packets.PacketSetCreativeSlot;
 import com.willfp.eco.spigot.display.packets.PacketSetSlot;
 import com.willfp.eco.spigot.display.packets.PacketWindowItems;
-import com.willfp.eco.spigot.integrations.anticheat.plugins.AnticheatAAC;
-import com.willfp.eco.spigot.integrations.anticheat.plugins.AnticheatMatrix;
-import com.willfp.eco.spigot.integrations.anticheat.plugins.AnticheatNCP;
-import com.willfp.eco.spigot.integrations.antigrief.plugins.AntigriefFactionsUUID;
-import com.willfp.eco.spigot.integrations.antigrief.plugins.AntigriefGriefPrevention;
-import com.willfp.eco.spigot.integrations.antigrief.plugins.AntigriefKingdoms;
-import com.willfp.eco.spigot.integrations.antigrief.plugins.AntigriefLands;
-import com.willfp.eco.spigot.integrations.antigrief.plugins.AntigriefTowny;
-import com.willfp.eco.spigot.integrations.antigrief.plugins.AntigriefWorldGuard;
-import com.willfp.eco.spigot.integrations.mcmmo.plugins.McmmoIntegrationImpl;
+import com.willfp.eco.spigot.integrations.anticheat.AnticheatAAC;
+import com.willfp.eco.spigot.integrations.anticheat.AnticheatMatrix;
+import com.willfp.eco.spigot.integrations.anticheat.AnticheatNCP;
+import com.willfp.eco.spigot.integrations.antigrief.AntigriefFactionsUUID;
+import com.willfp.eco.spigot.integrations.antigrief.AntigriefGriefPrevention;
+import com.willfp.eco.spigot.integrations.antigrief.AntigriefKingdoms;
+import com.willfp.eco.spigot.integrations.antigrief.AntigriefLands;
+import com.willfp.eco.spigot.integrations.antigrief.AntigriefTowny;
+import com.willfp.eco.spigot.integrations.antigrief.AntigriefWorldGuard;
+import com.willfp.eco.spigot.integrations.mcmmo.McmmoIntegrationImpl;
 import com.willfp.eco.util.command.AbstractCommand;
+import com.willfp.eco.util.display.Display;
 import com.willfp.eco.util.drops.internal.FastCollatedDropQueue;
 import com.willfp.eco.util.events.armorequip.ArmorListener;
 import com.willfp.eco.util.events.armorequip.DispenserArmorListener;
@@ -48,6 +49,7 @@ public class EcoPlugin extends AbstractEcoPlugin {
     public EcoPlugin() {
         super("eco", 87955, 10043, "com.willfp.eco.proxy", "&a");
         instance = this;
+        Display.setFinalizeKey(this.getNamespacedKeyFactory().create("finalized"));
     }
 
     @Override

eco-core/core-plugin/src/main/java/com/willfp/eco/spigot/integrations/anticheat/AnticheatAAC.java

@@ -1,4 +1,4 @@
-package com.willfp.eco.spigot.integrations.anticheat.plugins;
+package com.willfp.eco.spigot.integrations.anticheat;
 
 import com.willfp.eco.util.integrations.anticheat.AnticheatWrapper;
 import me.konsolas.aac.api.AACAPI;

eco-core/core-plugin/src/main/java/com/willfp/eco/spigot/integrations/anticheat/AnticheatMatrix.java

@@ -1,4 +1,4 @@
-package com.willfp.eco.spigot.integrations.anticheat.plugins;
+package com.willfp.eco.spigot.integrations.anticheat;
 
 import com.willfp.eco.util.integrations.anticheat.AnticheatWrapper;
 import me.rerere.matrix.api.events.PlayerViolationEvent;

eco-core/core-plugin/src/main/java/com/willfp/eco/spigot/integrations/anticheat/AnticheatNCP.java

@@ -1,4 +1,4 @@
-package com.willfp.eco.spigot.integrations.anticheat.plugins;
+package com.willfp.eco.spigot.integrations.anticheat;
 
 import com.willfp.eco.util.integrations.anticheat.AnticheatWrapper;
 import fr.neatmonster.nocheatplus.checks.CheckType;

eco-core/core-plugin/src/main/java/com/willfp/eco/spigot/integrations/anticheat/AnticheatSpartan.java

@@ -1,4 +1,4 @@
-package com.willfp.eco.spigot.integrations.anticheat.plugins;
+package com.willfp.eco.spigot.integrations.anticheat;
 
 import com.willfp.eco.util.integrations.anticheat.AnticheatWrapper;
 import me.vagdedes.spartan.api.PlayerViolationEvent;

eco-core/core-plugin/src/main/java/com/willfp/eco/spigot/integrations/antigrief/AntigriefFactionsUUID.java

@@ -1,4 +1,4 @@
-package com.willfp.eco.spigot.integrations.antigrief.plugins;
+package com.willfp.eco.spigot.integrations.antigrief;
 
 import com.massivecraft.factions.Board;
 import com.massivecraft.factions.FLocation;

eco-core/core-plugin/src/main/java/com/willfp/eco/spigot/integrations/antigrief/AntigriefGriefPrevention.java

@@ -1,4 +1,4 @@
-package com.willfp.eco.spigot.integrations.antigrief.plugins;
+package com.willfp.eco.spigot.integrations.antigrief;
 
 import com.willfp.eco.util.integrations.antigrief.AntigriefWrapper;
 import me.ryanhamshire.GriefPrevention.Claim;

eco-core/core-plugin/src/main/java/com/willfp/eco/spigot/integrations/antigrief/AntigriefKingdoms.java

@@ -1,26 +1,43 @@
-package com.willfp.eco.spigot.integrations.antigrief.plugins;
+package com.willfp.eco.spigot.integrations.antigrief;
 
 import com.willfp.eco.util.integrations.antigrief.AntigriefWrapper;
 import org.bukkit.Location;
 import org.bukkit.block.Block;
 import org.bukkit.entity.LivingEntity;
 import org.bukkit.entity.Player;
-import org.bukkit.event.block.BlockBreakEvent;
-import org.bukkit.event.block.BlockPlaceEvent;
-import org.bukkit.inventory.EquipmentSlot;
 import org.jetbrains.annotations.NotNull;
 import org.kingdoms.constants.kingdom.Kingdom;
+import org.kingdoms.constants.kingdom.model.KingdomRelation;
 import org.kingdoms.constants.land.Land;
+import org.kingdoms.constants.player.DefaultKingdomPermission;
+import org.kingdoms.constants.player.KingdomPlayer;
 import org.kingdoms.managers.PvPManager;
-import org.kingdoms.managers.land.LandManager;
 
 public class AntigriefKingdoms implements AntigriefWrapper {
     @Override
     public boolean canBreakBlock(@NotNull final Player player,
                                  @NotNull final Block block) {
-        BlockBreakEvent event = new BlockBreakEvent(block, player);
-        LandManager.onBreak(event);
-        return !event.isCancelled();
+        KingdomPlayer kp = KingdomPlayer.getKingdomPlayer(player);
+        if (kp.isAdmin()) {
+            return true;
+        }
+
+        Kingdom kingdom = kp.getKingdom();
+        if (kingdom == null) {
+            return false;
+        }
+
+        Land land = Land.getLand(block);
+
+        if (land == null) {
+            return true;
+        }
+
+        DefaultKingdomPermission permission = land.isNexusLand() ? DefaultKingdomPermission.NEXUS_BUILD : DefaultKingdomPermission.BUILD;
+        if (!kp.hasPermission(permission)) {
+            return false;
+        }
+        return kingdom.hasAttribute(land.getKingdom(), KingdomRelation.Attribute.BUILD);
     }
 
     @Override
@@ -41,10 +58,7 @@ public class AntigriefKingdoms implements AntigriefWrapper {
     @Override
     public boolean canPlaceBlock(@NotNull final Player player,
                                  @NotNull final Block block) {
-        Block placedOn = block.getRelative(0, -1, 0);
-        BlockPlaceEvent event = new BlockPlaceEvent(block, block.getState(), placedOn, player.getInventory().getItemInMainHand(), player, true, EquipmentSlot.HAND);
-        LandManager.onPlace(event);
-        return !event.isCancelled();
+        return canBreakBlock(player, block);
     }
 
     @Override

eco-core/core-plugin/src/main/java/com/willfp/eco/spigot/integrations/antigrief/AntigriefLands.java

@@ -1,4 +1,4 @@
-package com.willfp.eco.spigot.integrations.antigrief.plugins;
+package com.willfp.eco.spigot.integrations.antigrief;
 
 import com.willfp.eco.util.integrations.antigrief.AntigriefWrapper;
 import com.willfp.eco.util.internal.PluginDependent;

eco-core/core-plugin/src/main/java/com/willfp/eco/spigot/integrations/antigrief/AntigriefTowny.java

@@ -1,4 +1,4 @@
-package com.willfp.eco.spigot.integrations.antigrief.plugins;
+package com.willfp.eco.spigot.integrations.antigrief;
 
 import com.palmergames.bukkit.towny.object.Town;
 import com.palmergames.bukkit.towny.object.TownyPermission;

eco-core/core-plugin/src/main/java/com/willfp/eco/spigot/integrations/antigrief/AntigriefWorldGuard.java

@@ -1,4 +1,4 @@
-package com.willfp.eco.spigot.integrations.antigrief.plugins;
+package com.willfp.eco.spigot.integrations.antigrief;
 
 import com.sk89q.worldedit.bukkit.BukkitAdapter;
 import com.sk89q.worldguard.LocalPlayer;

eco-core/core-plugin/src/main/java/com/willfp/eco/spigot/integrations/mcmmo/McmmoIntegrationImpl.java

@@ -1,4 +1,4 @@
-package com.willfp.eco.spigot.integrations.mcmmo.plugins;
+package com.willfp.eco.spigot.integrations.mcmmo;
 
 import com.gmail.nossr50.datatypes.meta.BonusDropMeta;
 import com.gmail.nossr50.events.fake.FakeEvent;

eco-util/src/main/java/com/willfp/eco/util/bukkit/events/EcoEventManager.java

@@ -11,8 +11,6 @@ import org.jetbrains.annotations.NotNull;
 public class EcoEventManager extends PluginDependent implements EventManager {
     /**
      * Manager class for event management.
-     * <p>
-     * Prevents calls to {@link AbstractEcoPlugin#getInstance()}.
      *
      * @param plugin The {@link AbstractEcoPlugin} that this manages the events of.
      */

eco-util/src/main/java/com/willfp/eco/util/display/Display.java

@@ -1,7 +1,13 @@
 package com.willfp.eco.util.display;
 
 import lombok.experimental.UtilityClass;
+import org.apache.commons.lang.Validate;
+import org.bukkit.NamespacedKey;
 import org.bukkit.inventory.ItemStack;
+import org.bukkit.inventory.meta.ItemMeta;
+import org.bukkit.persistence.PersistentDataContainer;
+import org.bukkit.persistence.PersistentDataType;
+import org.jetbrains.annotations.ApiStatus;
 import org.jetbrains.annotations.NotNull;
 
 import java.util.ArrayList;
@@ -24,15 +30,9 @@ public class Display {
     private static final List<Function<ItemStack, ItemStack>> REVERT_FUNCTIONS = new ArrayList<>();
 
     /**
-     * Registered finalize functions.
+     * NamespacedKey for finalizing.
      */
-    public static final List<Function<ItemStack, ItemStack>> FINALIZE_FUNCTIONS = new ArrayList<>();
-
-
-    /**
-     * Registered finalize test functions.
-     */
-    public static final List<Predicate<ItemStack>> FINALIZE_TEST_FUNCTIONS = new ArrayList<>();
+    private static NamespacedKey finalizeKey;
 
     /**
      * Register display module.
@@ -66,24 +66,6 @@ public class Display {
         REVERT_FUNCTIONS.add(function);
     }
 
-    /**
-     * Register finalize function.
-     *
-     * @param function The function.
-     */
-    public void registerFinalizeModule(@NotNull final Function<ItemStack, ItemStack> function) {
-        FINALIZE_FUNCTIONS.add(function);
-    }
-
-    /**
-     * Register finalize test function.
-     *
-     * @param function The function.
-     */
-    public void registerFinalizeTestModule(@NotNull final Predicate<ItemStack> function) {
-        FINALIZE_TEST_FUNCTIONS.add(function);
-    }
-
     /**
      * Display on ItemStacks.
      *
@@ -91,6 +73,13 @@ public class Display {
      * @return The itemstack.
      */
     public ItemStack display(@NotNull final ItemStack itemStack) {
+        if (isFinalized(itemStack)) {
+            unfinalize(itemStack);
+            return itemStack;
+        }
+
+        revert(itemStack);
+
         for (Map<String, Function<ItemStack, ItemStack>> displayFunctions : DISPLAY_FUNCTIONS) {
             if (displayFunctions == null) {
                 continue;
@@ -121,9 +110,15 @@ public class Display {
      * @return The itemstack.
      */
     public ItemStack revert(@NotNull final ItemStack itemStack) {
+        if (isFinalized(itemStack)) {
+            unfinalize(itemStack);
+            return itemStack;
+        }
+
         for (Function<ItemStack, ItemStack> displayFunction : REVERT_FUNCTIONS) {
             displayFunction.apply(itemStack);
         }
+
         return itemStack;
     }
 
@@ -134,26 +129,82 @@ public class Display {
      * @return The itemstack.
      */
     public ItemStack finalize(@NotNull final ItemStack itemStack) {
-        for (Function<ItemStack, ItemStack> function : FINALIZE_FUNCTIONS) {
-            function.apply(itemStack);
+        Validate.notNull(finalizeKey, "Key cannot be null!");
+        ItemMeta meta = itemStack.getItemMeta();
+        if (meta == null) {
+            return itemStack;
         }
+        PersistentDataContainer container = meta.getPersistentDataContainer();
+        container.set(finalizeKey, PersistentDataType.INTEGER, 1);
+        itemStack.setItemMeta(meta);
         return itemStack;
     }
 
     /**
-     * Finalize an ItemStacks.
+     * Unfinalize an ItemStacks.
+     *
+     * @param itemStack The item.
+     * @return The itemstack.
+     */
+    public ItemStack unfinalize(@NotNull final ItemStack itemStack) {
+        Validate.notNull(finalizeKey, "Key cannot be null!");
+        ItemMeta meta = itemStack.getItemMeta();
+        if (meta == null) {
+            return itemStack;
+        }
+        PersistentDataContainer container = meta.getPersistentDataContainer();
+        container.remove(finalizeKey);
+        itemStack.setItemMeta(meta);
+        return itemStack;
+    }
+
+    /**
+     * If an item is finalized.
      *
      * @param itemStack The item.
      * @return If finalized.
      */
     public boolean isFinalized(@NotNull final ItemStack itemStack) {
-        for (Predicate<ItemStack> function : FINALIZE_TEST_FUNCTIONS) {
-            if (function.test(itemStack)) {
-                return true;
-            }
+        Validate.notNull(finalizeKey, "Key cannot be null!");
+        ItemMeta meta = itemStack.getItemMeta();
+        if (meta == null) {
+            return false;
         }
+        PersistentDataContainer container = meta.getPersistentDataContainer();
+        return container.has(finalizeKey, PersistentDataType.INTEGER);
+    }
 
-        return false;
+
+    /**
+     * Register finalize function.
+     *
+     * @param function The function.
+     * @deprecated Not needed.
+     */
+    @Deprecated
+    public void registerFinalizeModule(@NotNull final Function<ItemStack, ItemStack> function) {
+        // This function is not needed.
+    }
+
+    /**
+     * Register finalize test function.
+     *
+     * @param function The function.
+     * @deprecated Not needed.
+     */
+    @Deprecated
+    public void registerFinalizeTestModule(@NotNull final Predicate<ItemStack> function) {
+        // This isn't needed.
+    }
+
+    /**
+     * Set key to be used for finalization.
+     *
+     * @param finalizeKey The key.
+     */
+    @ApiStatus.Internal
+    public static void setFinalizeKey(@NotNull final NamespacedKey finalizeKey) {
+        Display.finalizeKey = finalizeKey;
     }
 
     static {

eco-util/src/main/java/com/willfp/eco/util/drops/internal/DropManager.java

@@ -2,14 +2,24 @@ package com.willfp.eco.util.drops.internal;
 
 import lombok.Getter;
 import lombok.experimental.UtilityClass;
+import org.jetbrains.annotations.NotNull;
 
 @UtilityClass
 public final class DropManager {
     /**
      * The currently used type, or implementation, of {@link AbstractDropQueue}.
      * <p>
-     * Standard by default, used if drops.collate key is not present in config.
+     * Default is {@link DropQueueType#COLLATED}, however this can be changed.
      */
     @Getter
     private DropQueueType type = DropQueueType.COLLATED;
+
+    /**
+     * Sets the type of Drop Queue to be used.
+     *
+     * @param type The type.
+     */
+    public static void setType(@NotNull final DropQueueType type) {
+        DropManager.type = type;
+    }
 }

gradle.properties

@@ -1,2 +1,2 @@
-version = 3.3.0
+version = 3.4.0
 plugin-name = eco